package com.leetcode.递归.从尾到头打印链表;

public class ListNode {

    int val;

    ListNode next = null;

    ListNode(int val) {
        this.val = val;
    }

    @Override
    public String toString() {
        return "ListNode{" +
                "val=" + val +
                ", next=" + next +
                '}';
    }
}
